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About the Role

Provide technical leadership for end-to-end RAN architecture, bridging business requirements and engineering execution to ensure Open RAN products meet high standards of performance, security, and scalability in a multi-disciplinary environment.

Responsibilities

• Define end-to-end solution architectures and establish engineering best practices, prioritizing scalability, maintainability, and security.
• Provide architecture governance and technical guidance to engineering teams throughout the development and deployment lifecycle.
• Drive network performance improvement through advanced RF tuning, parameter configuration audits, and AI-driven analytics.
• Lead release planning, bug tracking, and Root Cause Analysis (RCA).
• Manage the First Office Application (FOA) process for new software releases across 4G/5G/NTN/IoT products.
• Collaborate with stakeholders to standardize "golden parameters" and baseline configurations for consistent network performance.
• Ensure technical solutions align with product goals and business requirements, facilitating seamless integration from the core network to the edge.

Requirements

• 10+ years of professional experience in mobile network engineering.
• Bachelor’s degree in Electrical or Electronics Engineering (or equivalent).
• Deep knowledge of 3GPP and O-RAN standards.
• Expertise in 4G/5G/NTN/IoT technologies.
• Proficiency in RF optimization, UE/Trace log analysis, and KPI/Counter management.
• Strong understanding of Cloud-native/Kubernetes terminology.
• Experience in Software Release Management (JIRA, bug tracking, RCA), asset planning, and cost analysis.
• Collaborative team player capable of thriving in multi-disciplinary frameworks.
• Proven ability to take ownership of complex challenges and drive results in fast-paced environments.
• Strong problem-solving skills with a proactive, "can-do" attitude.
• Hands-on experience with SON (Self-Organizing Network) parameter tuning for mobility and traffic balancing.
• Experience in SSVT (System Software Validation Testing) and Cluster Optimization.
• Familiarity with mass event handling and advanced traffic balancing strategies.
• Ability to translate complex technical data into actionable architectural decisions.

Skills

• Open RAN
• Cloud-native
• 4G/5G/NTN/IoT technologies
• RF optimization
• UE/Trace log analysis
• KPI/Counter management
• Cloud-native/Kubernetes
• Software Release Management
• JIRA
• Bug tracking
• RCA
• Asset planning
• Cost analysis
• SON parameter tuning
• SSVT
• Cluster Optimization
• Mass event handling
• Advanced traffic balancing

Experience Level

• Senior

Education Level

• Bachelor’s degree in Electrical or Electronics Engineering (or equivalent)

About the Company

• Rakuten Symphony’s Radio Access Network (RAN Division) is revolutionizing wireless connectivity through the development and management of advanced, cloud-native Open RAN solutions.
• We empower mobile network operators globally by leveraging open interfaces, containerization, and AI-driven analytics.
• Our mission is to deliver highly scalable, efficient, and reliable 4G/5G infrastructure that pushes the boundaries of network performance.